Explanation: The price increase on the halving event will be less strong that many people had hoped (650-800$ instead of 1000-2000$). So some will sell after the event, and price will go down.
Now this sounds incredibly bearish from today's point of view (after an increase of 20% in few days up to $520) but I think this is a bullish statement. $400-410 will be the low and then price in (northern-hemisphere) autumn will increase again.
If this price increase is just the beginning and continues all the way to the block halving, then people will for sure cause the price to tank as they will cash out. Everything that happens now is purely because of the block halving. Once the block halving is over everything will come down.